[Bug 684237] videomixer: Caps negotiation does not always work

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=684237
  GStreamer | gst-plugins-good | git

--- Comment #16 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2012-09-21 16:04:18 UTC ---
That thread seems to go way outside the goal. Convention was probably a wrong
word, which I stated, and yes you are right, one can add field if he wants. I
do question the API sometimes, no need to be upset, let's ignore that from now
on.

The actual bug, in the videomixer element (which does not happen in a decoder)
is that we return the srccaps upstream. This fails when there is multiple
sinkpads trying to negotiate at the same moment. Hopefully we are clear on
that. My *suggested* fix (the three patches) are incremental fixes to try and
address the problem without having to rewrite all the negotiation code. Is your
intention to rewrite it yourself ? If so, let me know, I can assume this will
be fixed shortly. Otherwise, as I already proposed, I can try and rework the
third patches, which seems to be the only one you disagree on, is this right ?

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